Python爬取意林杂志所有期刊文章

可能很多人对这个意林杂志比较陌生，但是对于小编来说，那可是满满的回忆。记得我们上中学那时候读过的意林，那可是一本接着一本，其中有很多令人感动的故事，一直被温暖，被治愈。

接下来让我们来看看如何使用爬虫，爬取所有的杂志内容，目标网站：

https://www.yilinzazhi.com/

爬虫代码：

# coding:utf-8
# __auth__ = "maiz"
import requests
from lxml import etree


class Zazhi:
    def __init__(self):
        self.url = 'https://www.yilinzazhi.com/'
        self.item = {}
        self.headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36"}


    def parse_url(self,url):
        response = requests.get(url=url,headers=self.headers)
        return response.content.decode('utf-8',errors='ignore')


    def handle_html_str(self,html_str):
        html = etree.HTML(html_str)
        return html


    def get_list_url(self,html_str):
        """
        :param  html_str:  前端页面的html字符
        :return: list_url:  20xx 年 x 期的列表url
        """
        list_url = []
        html = self.handle_html_str(html_str)
        div_list = html.xpath("//td[@class='time']")
        for div in div_list:
            list_url.append(r"https://www.yilinzazhi.com/" + div.xpath("./a/@href")[0])
        return list_url


    def get_title_list_url(self,list_url):
        """
        :param list_url: 20xx 年 x 期的列表url
        :return: content_url_list 内容页url列表
        """
        content_url_list = []
        for url in list_url[:60]:
            print(url)
            base_url = url.replace("index.html","")
            html_str = self.parse_url(url)
            html = self.handle_html_str(html_str)
            div_list = html.xpath("//span[@class='maglisttitle']")
            for div in div_list:
                content_url_list.append(base_url + div.xpath("./a/@href")[0])
        return content_url_list


    def end(self,content_url_list):
        """
        :param content_url_list: 内容页url列表
        :return:
        """
        for content_url in content_url_list:
            print(content_url)
            self.item['content_url'] = content_url
            str = self.parse_url(content_url)
            html = self.handle_html_str(str)
            self.item['title'] = html.xpath("//div[@class='blkContainerSblk collectionContainer']/h1/text()")[0]
            content_list = html.xpath("//div[@class='blkContainerSblkCon']//p//text()")
            content = "".join(content_list)
            content_ = content.replace("\u3000\u3000","")
            self.item['content'] = content_
            with open('意林合集.txt', 'a', encoding='utf-8') as fw:
                fw.writelines("{}\n{}\n\n\n".format(self.item['title'], self.item['content']))
                print("{}保存成功".format(self.item['title']))


    def run(self):
        str = self.parse_url(self.url)
        list_url = self.get_list_url(str)
        content_url_list = self.get_title_list_url(list_url)
        self.end(content_url_list)


if __name__ == '__main__':
    zazhi = Zazhi()
    zazhi.run()